modelReturnTemperatureControl

Pump controlled for target return temperature
Diagram of ReturnTemperatureControl

Information

1. Purpose of model

Control return temperature in heat grids.

2. Level of detail, physical effects considered, and physical insight

(Purely technical component without physical modeling.)

3. Limits of validity

(Purely technical component without physical modeling.)

4. Interfaces

waterPortOut: fluidPortOut

waterPortIn: fluidPortIn

5. Nomenclature

T_return = returnTemperatureSensor.T is a temperature in K

Delta_p=pump.Delta_p is a pressure difference in Pa

P_drive_pump = pump.P_drive is a power in W

6. Governing Equations

(no equations)

7. Remarks for Usage

(no remarks)

8. Validation

(no validation or testing necessary)

9. References

(no remarks)

10. Version History

Model created by Lisa Andresen (andresen@tuhh.de), Dec 2014

Parameters

TypeNameDefaultDescription
TILMedia.VLEFluidTypes.BaseVLEFluidMediumsimCenter.fluid1Medium in the component
Booleanuse_heatingCurvetrueBy default tries to adjust power according to T_return
SI.TemperatureT_target363.15Target temperature at inlet
Modelica.Blocks.Types.SimpleControllercontrollerType.Modelica.Blocks.Types.SimpleController.PIDType of controller
SI.PowerP_min40Minimum power of pump
SI.PowerP_max999999Maximum power of pump
Realk10Gain of controller
SI.TimeTi10Time constant of Integrator block
SI.TimeTd10Time constant of Derivative block

Connectors

TypeNameDefaultDescription
TransiEnt.Basics.Interfaces.Thermal.FluidPortOutwaterPortOutfluidport supply on consumer side
TransiEnt.Basics.Interfaces.Thermal.FluidPortInwaterPortInfluidport return on consumer side

Components

TypeNameDefaultDescription
TransiEnt.SimCentersimCenter
SI.TemperatureT_returnreturnTemperatureSensor.T
SI.PressureDifferenceDelta_ppump.Delta_p
SI.PowerP_drive_pumppump.P_drive